I have a 4 button mouse, and I would like the 4th button to be assigned as 'Escape'. I've read the thing in the AutoCAD help, and it didn't help. I tried the ^C^C thing it says, but nothing happened. The thing is, I cannot even see the 4th button in the mouse properties box. If I am on-line, 4th button works as the 'Back' command, but I can't change that anywhere that I know of. Does AutoCAD (or Windows for that matter) know I have a 4th button? Does it assume? If so, am I just that much of a bonehead that I can't figure it out? Insight would be appreciated. Even if you call me "Bonehead"